Breather Line and Suction Line Inspection (Page-1)
Special Tools Required
- Fuel Pressure Gauge Attachment Set 07AAJ-S6MA150
- Vacuum Pump/Gauge, 0-30 inHg Snap-on YA4000A or equivalent, commercially available
- Vacuum/Pressure Gauge, 0-4 inHg 07JAZ-001000B
Remove the center console.
Remove the parking brake lever, then remove the access panel from the floor.
Disconnect the suction line (A) from the fuel tank unit, and connect a vacuum pump/gauge, 0-30 in Hg (B), to the hose as shown.
Start the engine, and check the vacuum:
If there is vacuum, go to step 5.
If there is no vacuum, replace the fuel filter.
Turn the ignition switch to LOCK (0).
Attach the fuel pressure gauge attachment. Then connect the vacuum pump/gauge (A) to the suction line (B), and apply vacuum to the line:
If the line holds vacuum, check for a blockage in the suction line. If there is a blockage, replace the suction line.
If the line does not hold vacuum, go to step 7.
Raise the vehicle on a lift.
Remove the fuel tank mount bracket (A).
Disconnect the breather line (A). Attach the fuel pressure gauge attachment, then plug the suction line (B) with a rubber cap (C).
Test yourself
A quick Honda Fit quiz: every answer comes with an explanation and a link to the manual page.